The Hon. (Oliver) Piers St. Aubyn, MC, who died at his home in Cornwall, 24 May, 2006, aged 85, was the younger brother, and heir presumptive of the 4th Baron St. Levan. He was b. 12 July, 1920, son of the 3rd Baron (b. 1895; d. 1978), by his wife, the former Hon Clementina Nicolson, daughter of the 1st Baron Carnock. He was educated at Wellington, and St James's School, Maryland, USA; was High Sheriff of East Sussex, 1982-83; served in WW2 as Capt 60th Rifles and Parchute Regt (mentioned in despatches, awarded the MC); married 1948, Mary Bailey (d. 1987), daughter of Bailey Southwell, of Crocodile Leap Farm, Olievenhoutpoort, South Africa, by whom he had issue. His son, James Piers Southwell St. Aubyn, b. 1950, is now heir pres. to the Barony of St. Levan (UK 1887) and the Baronetcy (UK 1866).
Source: Daily Telegraph 26 May, 2006